From: Lyude Paul Date: Tue, 11 Dec 2018 23:50:26 +0000 (-0500) Subject: drm/dp_mst: Fix memory leak in drm_dp_mst_topology_mgr_destroy() X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=f536e00c46d22ccd1b2aada5b22754c35d9487ce;p=openwrt%2Fstaging%2Fblogic.git drm/dp_mst: Fix memory leak in drm_dp_mst_topology_mgr_destroy() We need to call drm_dp_mst_topology_mgr_set_mst(mgr, false) when destroying the topology manager in order to ensure that the root mstb and all of it's descendents are actually destroyed, and additionally to try to make sure that we leave the hub in a clean state. Signed-off-by: Lyude Paul Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20181211235026.21758-1-lyude@redhat.com --- diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 5a73a0b1c9cd..ad0fb6d003be 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -3235,6 +3235,7 @@ EXPORT_SYMBOL(drm_dp_mst_topology_mgr_init); */ void drm_dp_mst_topology_mgr_destroy(struct drm_dp_mst_topology_mgr *mgr) { + drm_dp_mst_topology_mgr_set_mst(mgr, false); flush_work(&mgr->work); flush_work(&mgr->destroy_connector_work); mutex_lock(&mgr->payload_lock);